FI121665B - Method of changing the carrier lines to an elevator and method of manufacturing an elevator - Google Patents

Description

METHOD FOR REPLACING THE LIFT ROPE AND METHOD FOR MANUFACTURING THE LIFT

FIELD OF THE INVENTION

The invention relates to a method of changing the rope lift of a lift as defined in the preamble of claim 1 and to a method of manufacturing a lift according to claim 8.

BACKGROUND OF THE INVENTION

10 In the case of so-called jump lifts, the lower part of the elevator shaft is taken into use before the building is completed. In this case, the upper parts of the building and the elevator shaft can be constructed simultaneously, while the elevator moving on the lower part of the elevator shaft is already serving people on the lower floors of the building 15. Usually, in jump lifts, the moving elevator car at the lower parts of the elevator shaft is supported and moved during the construction period by the supporting platform in the elevator shaft, supported by the lifting machinery, which thus forms the engine room level. When the building under construction and the elevator shaft above the machine room-20 net level have reached a sufficient level of readiness, the completed elevator shaft part can be put into operation. A jumping lift is then carried out in which the engine room level is raised higher in the elevator shaft. When the construction-time elevator has reached its final height 25 and no jumps are made, the construction-time elevator can be converted to a final elevator. In this case, it may be necessary to replace the hoisting rope and change the suspension ratio of the elevator. Changing the suspension ratio makes it difficult to change the hoisting rope, since the new 30 ropes will follow a different path than the old rope and therefore the new hoisting rope will not be slid over the folding wheels and the drive wheel, thus being pulled by the old rope. In particular, the problem is to safely remove the old hoisting rope so that 2 ropes or parts thereof cannot fall uncontrollably into the shaft. It is known, for example, that ropes have been lowered to the bottom of an elevator shaft by an auxiliary hoist whose rope end is attached to an old hoisting rope. However, this is difficult in 5 taller buildings because the limited lifting distance of the auxiliary hoists has caused problems and the need for special arrangements.

Similar problems to those described above have also occurred in ti-10 cases where the old rope rope of an elevator already in use is being removed for some reason or another during retrofitting or maintenance. In particular, problems have occurred when the old rope has had to be replaced with a new one, and for some reason or another it has not been advantageous to use the old rope to pull the new one in place. This may be disadvantageous, for example, because the dimensions of the new rope may be different from those of the old rope. Also, when modernizing an elevator, when modifying the suspension ratio of an old elevator, for example between 1: 1 and 1: 2 suspensions, it is generally necessary to remove the old rope from the elevator in some way known by e.g.

PURPOSE OF THE INVENTION

The object of the invention is to eliminate e.g. the aforementioned drawbacks of known solutions. It is a particular object of the invention to provide an improved method of changing the rope rope of a lift. A further object of the invention is to provide e.g. one or more of the following advantages: 30 - Providing a safe method of changing / removing the hoisting rope from the elevator system and manufacturing the elevator.

A method is achieved in which, by carrying out the method steps of the invention, the old elevator hoisting ropes 35 are gradually slid out of the elevator system.

3 - A method of manufacturing the elevator is achieved, in which the final stages of the manufacture of the elevator, in particular, are safe and effective.

A method for replacing ropes and for manufacturing an elevator 5 is achieved, whereby the need for separate lifts is reduced when replacing old interchangeable hoisting ropes.

- A method of changing ropes and producing a lift is achieved which is particularly well suited for the manufacture / rope change / modernization of elevators with high elevation heights (over 100m), since the use of very high elevation auxiliary lifts to remove old hoisting ropes (e.g.

15 - A method is provided for changing the ropes and manufacturing the elevator, which can be performed by a small number of installers.

SUMMARY OF THE INVENTION

The method according to the invention for changing the lifting ropes of a lift can be defined as being characterized in what is stated in the characterizing part of claim 1. The method of making the elevator according to the invention can be defined as being characterized in what is stated in the characterizing part of claim 25. Other embodiments of the invention may be defined by what is set forth in the other claims. Inventive embodiments are also disclosed in the specification and drawings of this application.

The inventive content of the application may also be defined otherwise than as set forth in the claims below. The inventive content may also consist of several separate inventions, especially if the invention is considered in the light of the disclosed or implied subtasks or the benefits or classes of benefits achieved. In this case, some of the attributes contained in the claims below may be redundant for separate inventive ideas. The features of the various embodiments of the invention may be applied within the scope of the inventive concept with other embodiments. The inventive measures defined in the dependent claims could also be considered separate from the independent claim procedures.

According to the invention, in the method of changing the rope lift, the old elevator rope is removed and a new elevator rope is installed, the old and the new rope rope each comprising at least one rope, preferably a plurality of ropes. The method comprises performing at least 15 of the following steps: - installing a new elevator rope and arranging the elevator car to be moved through the new rope rope, feeding the old rope rope to 20 rope pickup locations up and / or down the elevator car 25 in the elevator shaft to which the old rope is directly or indirectly connected so that the old hoisting rope runs under the control of movement of the elevator car to a rope picking object arranged to be pulled by the traction force 30, preferably the rope rope the traction force being preferably gravity and / or the traction force produced by the rope picking object on the old rope, such as e.g. the tensile force applied to the rope.

5

The invention, in one embodiment, is fed to the old hoisting ropes moving the cable assembly to the elevator shaft, the elevator car 5 by means of the hoisting ropes up and given elevator car in relation to the building place to a diverting pulley moving and passing over it and diverting further extending the cable assembly to the old hoisting ropes run as the old hoisting ropes passing a rope collection items ex 10 of the sheave over the cable assembly to driven by a pulling force.

In an embodiment of the invention, the method comprises at least the following steps: 15 - moving the elevator car to the top of the shaft and the counterweight to the lower end, guiding the new hoisting rope over the traction sheave and securing it to the elevator car, securing the new hoisting rope to the counterweight; by driving the hoisting rope downwardly in the elevator car elevator shaft, securing the counterweight diverting pulley through which the old hoisting rope passes, essentially motionlessly to the elevator shaft, caused by the resultant pulling effect pulling out of the elevator system sex, 35 - driving the elevator car upwards so that the old hoisting rope is retracted to the rope collecting object 6, pulled by said pulling force, whereby the elevator car is preferably driven to its upper position.

In one embodiment of the invention, the old 5 hoisting ropes, the first end of which is secured to the building by means of a bracket, are moved into the rope collector by moving the elevator car from the elevator car with respect to the building, to the rope pickup stationary at the top of the elevator and further to the rope pickup object, and allowing 15 old rope ropes to run toward the rope pickup point to pull freely the said pull wheel to the rope pickup target.

In one embodiment of the invention, the old hoisting rope is fastened to the elevator car, preferably near its head, to prevent free fall of the old hoisting rope and lowered the old hoisting rope by moving the elevator car downwardly to a rope picking site such as a reel or the bottom of an elevator shaft. Prior to this, the elevator car is preferably driven to its upper position.

30

In one embodiment of the invention, the method comprises lowering the end of the old rope in the elevator shaft by driving the elevator car to its upper position and arranging the end of the old rope into the elevator car and securing the 35 down to the elevator shaft and further down to the rope picking site, and lowering the old rope by moving the elevator car down the elevator shaft.

5

In one embodiment of the invention, the method comprises converting an elevator with a car body and / or counterweight suspended in a 1: 2 lift ratio to a 1: 1 elevator, wherein the first end of the new hoisting rope is secured to the elevator car and the other end 10 to the counterweight.

According to the invention, the process for the manufacture of an elevator carries out the operations of the invention described above or of at least one embodiment thereof. Thus, the method of making the elevator according to the invention can utilize one or more of the methods described above, together or separately, for completely or partially removing the old hoisting rope of the elevator, whereby the described method can only form part of the rope replacement process. In this case, the process may be initiated or continued in a manner other than that stated in the application.

LIST OF FIGURES

In the following, the invention will be described in detail by way of exemplifying embodiments with reference to the accompanying drawings, in which Figures 1-9 illustrate situations at various stages of the method of the invention in the order in which the method is carried out.

30

DETAILED DESCRIPTION OF THE INVENTION

Figure 1 illustrates a step of the method according to the invention in which the old hoisting rope 6 is still in place and operable 35 for moving the elevator car 1. The elevator car 1 and 8 counterweight 3 are each suspended with a 1: 2 lifting ratio on the old hoisting rope and a movable drive gear 4 on the movable engine room level 8. The old hoisting rope is fixed at its first end 5 to the bracket 60 in connection with the machine room level. From the rope bracket 60, the old rope carriage 6 passes to the elevator car 1, the pulley 12, rotates the pulley 12 and rises, rotates the traction sheave 4 and lowers 10 the pulley 17 to the counterweight 3, rotates the counterweight pulley 11 and rises to the machine room platform 8 and further passes to a rope bracket 70 in connection with the machine room plane, through which the old rope 6 further passes 15 to a rope collecting object 14, which in the figure is a rope reel. For example, during the previous skip lifts, the rope reel 14 has been able to supply the elevator system with the additional rope required for elevation by opening the bracket 70 through which the rope 6 passes intact. In connection with the removal of the old rope 6, the old rope 6 may similarly be re-directed to the same rope reel 14. The method step shown in Figure 1 further shows the first end of the new hoisting rope 5 lifted to the tops of the elevator shaft from the rope reel. then, the first end of the new hoisting rope is lowered to the elevator car 1 raised at the top of the elevator shaft and secured thereto with a 1: 1 suspension as shown in Fig. 3. The other end of the new hoisting rope 5 is secured to the counterweight 3. The elevator car 1 can then be moved by means of the new hoisting rope. Suspension of the old hoisting rope 6 will not be started until the elevator car has been suspended from the new hoisting rope 5. 35 When attaching the new hoisting rope 5 to the elevator car 1, it is advantageous to move the elevator car deflection pulley 12 at the center of gravity 9 so that the new hoisting rope can be fastened with the bracket 19 to the elevator car center of gravity. During the transfer, the rope rope 5 is secured by a bracket 71 and the elevator car 1 5 is locked in the elevator shaft, e.g. Then, the clip 71 is opened. Alternatively, instead of moving, the rope attachment point 60 could be moved to the elevator car 1. In this method step, when attaching a new rope rope 5 to the counterweight 3, it is preferable to move the rope pivot wheel 6 so as not to interfere with the new rope rope 5. hold in connection with the counterweight 3 or it can be completely detached from the counterweight 3 and possibly provided with its own horizontal control to hold it horizontally on the desired track as it moves in the shaft. The elevator car is then driven downward in the shaft (to position 4) so that the counterweight 3 and the diverting wheel 11 are raised, the counterweight 3 being lifted by the hoisting rope 5 and the diverting wheel 11 being lifted by the hoisting rope 6. Preferably, the elevator car and counterweight are driven in close proximity to one another in the situation shown in Figure 4, most preferably substantially midway in the elevator shaft. This way the counterweight 3 can be worked through the elevator car. The diverting wheel 11 is then detached from the counterweight 3, if it has not already been made in the previous step 25, and secured to the elevator shaft 2 substantially immobile. The rope bracket 70 between the ratchet wheel 11 and the rope pickup point 14 is then opened so that the rope 6 passes (and is feedable) without obstructing the rope pickup 30 to the rope pickup point 30. . Instead of or in addition to providing gravity-based traction, a separate rope pulling device 35 may be used which causes the rope to pull to / from the system and toward the rope pulling point 14, such as a powered rope reel or a separate rope pulling rope puller 14. .

4, the elevator car 1 is driven upwardly by the new hoisting rope 5 in the elevator shaft 2. As a result, the old hoisting rope 6 is able to run away from the elevator system towards the rope picking point 14, where the aforementioned pulling force 10 When lifting the elevator car 1, the diverting wheel 12 moves upwardly and the portion of the rope 6 between the traction sheave 4 and the bracket 60 is shortened and the amount of shortening is released into excess rope and moved by pulling force toward the rope pickup 14. the traction sheave 4) of the old hoisting rope 6 passing through and passing over) to the rope collecting object 14 is allowed to run freely towards the rope collecting object 14, pulled by a pulling force on the rope collecting object (14). A similar effect would be achieved by an alternative arrangement if the hoisting rope 6 was guided from the elevator car 1 to a fixed deflection pulley in place of the rope bracket 60 and further to a rope collection site 25.

Figure 5 shows the final situation in which the elevator car has just been driven up. During the lifting of the elevator car, the diverting pulley 11 has been stationary and the counterweight 3 has moved to the lower end of the shaft 30. In addition, in the figure shown, after lifting the elevator car 1, the old hoisting rope 6 is disconnected from the elevator car 1 (by removing it from the diverting wheel 12 and detaching it from the bracket 60 and re-attaching it to the machine room bracket 71).

35 11

In the method, it is generally arranged that the elevator car 1 is first movable via a new hoisting rope 5 (and preferably a new hoisting machine 7) and only after that the old hoisting rope 6 5 is started to be removed and fed out of the elevator system. As a result of the movement of the elevator car, the old hoisting rope 6, under the control of the movement of the elevator car 1, runs to the rope collecting object towards which the old rope is arranged to strive under the influence of traction. Thus, when the elevator car is moving, the old hoisting rope 10 moves simultaneously, and when the elevator car 1 is in place, the old hoisting rope does not move, since the old hoisting rope is connected directly or indirectly to the elevator car 1. The elevator car 1 is moved in such a manner that the old hoisting rope 6 moves simultaneously with the movement of the elevator car 15 towards the rope picking point, in particular so that a proportion of the hoisting rope traveled towards the rope collecting point during the movement of the elevator car. The old hoisting rope 6 is connected to be controlled by the movement of the elevator car 1 by connecting the old rope 20 directly to the elevator car 1 or indirectly via a part (e.g. 11, 5 or 3) connected to the elevator car 1 which moves every time the car. The end of the old hoisting rope 6 is preferably at the rope picking point. The rope collection point 25 is preferably located at or near the lower end of the elevator shaft, e.g. at the lowest floor level. The rope collection point 14 may be located elsewhere, if necessary, in particular if said attraction is provided alongside or instead of gravity by other means mentioned in the application.

30

Fig. 6 shows the final state of the next method step in which the elevator car has been driven down in the elevator shaft 2 in the vicinity of the counterweight 3, whereby the elevator car can work with the counterweight. Subsequently, the diverting wheel 11 is detached from the elevator shaft 2 and secured to the new hoisting rope 5, in particular to the 12 (or alternatively counterweight) portion of the hoisting rope 5 moving parallel to the counterweight 3. the movement of the elevator car 1 controls the movement of the diverting pulley in the elevator shaft and thus also the slope of the old hoisting rope 6 following the movement of the diverting wheel towards the rope picking point 14. by means of said traction force, freely winds over the diverting pulley 16 to the rope collecting object 14, thereby reaching the situation shown in FIG. a. At this point, the old hoisting rope 6 is no longer in contact with the elevator car 1 by means of a flywheel, but its head is fixed in relation to the building by a bracket 71, so that lifting the flywheel 11 releases the rope. The rope bracket 70 between the diverting pulley 20 and the rope picking point 14 is then secured and the diverting pulley 11 removed from the new rope assembly 5 and supported on the auxiliary hoist 10.

FIG. 72 downwards to the elevator shaft 2 and further to the rope picking site 14. The figure also shows how the diverting wheel 11 is preferably removed by raising the auxiliary lift 10.

Figure 9 shows the following method step in which the hoisting rope 6 is detached from the bracket 71 and the portion of the hoisting rope 6 between the bracket 71 and 13 72 is removed by either cutting it or winding it on the roof of the elevator car 1. The hoisting rope 6 is attached directly to the elevator car, preferably near its head, to prevent the hoisting rope from falling freely. Next, the old hoisting rope 6 is lowered by moving the elevator car 1 downwardly in the elevator shaft 2 to which the old hoisting rope 6 is secured so that the old hoisting rope, controlled by elevator car movement, runs down the elevator shaft at least gravitationally rope collecting 10 to a rope. Alternatively, the bottom of the elevator shaft can be used as a rope collecting object. The end of the old hoisting rope 6 is lowered with the elevator car 1. In the situation shown in Fig. 9, the elevator car is driven into its lower position, whereby the end of the old hoisting rope also moves to the lower part of the elevator shaft and can be safely detached from the elevator car. Thereafter, the end of the old hoisting rope 6 removed from the elevator car 1 is moved to the rope collecting object 14 and thus the old hoisting rope 6 collected in one object, e.g. a reel, roll or heap, is removed from the area 20.

The figures show a final machine room 9 separate from the machine room plane and its machinery 7, but not necessary but with the equipment 25 at the machine room 8, similar operations 25 can be carried out with small additional arrangements, for example using a drive gear 4 to move the new hoisting rope and moving the old hoisting rope into the abyss.

30

In the example shown, the old rope rope 6 is connected to the elevator car 1 and the counterweight 3 via the pulleys 11 and 12, but it is clear that the invention could also be used to replace the elevator rope 35 with one or both ends of the rope 6 14 connected to the elevator car / counterweight. .

The method illustrated in the Figures primarily illustrates a rope-change method for the final stage of a jump-5 elevator, in which the engine room level is stepped before stage 1 as construction progresses in shaft 2, and elevator car 1 has served building users or builders during the construction phase. However, the same method 10 is applicable to rope replacements other than jump lifts, for example rope replacements or modernizations.

Above described are several methods / steps of the rope replacement method which can be utilized to make the rope run out of the elevator system. Not all sub-methods need to be utilized, although it is advantageous to operate as previously described. For example, once the ropes have been fed out of the elevator system 20 under the control of the movement of the elevator car, it can be continued in some other way, for example by pulling the ropes out of the system when the resistance has been sufficiently reduced.

In the application, the term hoisting rope refers to a hoisting rope comprising at least one rope, chain, belt or the like and arranged to move the elevator car and / or counterweight. The elevator shaft 2 is preferably formed inside the building and is vertical. It will be apparent to one skilled in the art that the invention is not limited to the embodiments described above, in which the invention is described by way of example, but that many modifications and various embodiments of the invention are possible within the inventive concept defined in the claims below.

Claims (8)

A method of replacing an elevator rope, the method of removing the old elevator rope rope and installing a new elevator rope rope comprising at least one rope, preferably a plurality of ropes, each of the old and new rope ropes, comprising the step of installing a new elevator rope rope (5) arranging the elevator car to be moved by 10 new hoisting ropes, characterized in that the method further comprises at least the following step: feeding the old hoisting rope to the rope collecting object (14) to which the old hoisting rope (6) passes from the elevator system; / or down in the elevator shaft (2) to which the old rope (6) is connected directly or indirectly to the elevator car (1) so that the old hoisting rope (6) runs, controlled by movement 20 of the elevator car (1), to the rope collecting object ) is an arrangement The traction force is preferably aimed at which rope picking object (14) is preferably a rope reel or elevator shaft base, and which traction force is preferably gravity 25 and / or the traction force (14) produced by the rope picking object (14) on the old rope. Method according to one of the preceding claims, characterized in that the old hoisting rope is fed to the rope collecting object by moving the elevator car (1) upwards by means of a new hoisting rope (5) in the elevator shaft (2) running the old hoisting rope (6) passing over and from the diverting pulley (16) to the rope collection site so that the old hoisting rope (6) travels freely over the 5 rope collection points (14) pulling said diverting pulley (16). Method according to one of the preceding claims, characterized in that the method comprises at least the following steps: 10. moving the elevator car to the upper end of the elevator shaft and counterweight to the lower end, - guiding the new hoisting rope (5) over the traction sheave and securing to the elevator car (1) lifting the diverting pulley (11) of the counterweight (3) suspended on the old rope with a 1: 2 lifting ratio, with the new rope sliding the elevator car (1) down the elevator shaft (20), 20 - securing the diverting wheel (11) of the counterweight (3) ), through which the old hoisting rope (6) passes substantially stationarily into the elevator shaft (2), the old hoisting rope (6) is arranged to move freely 25 of the counterweight (3) from the diverting pulley (11) to the rope picking object (14) ), which rope collecting object (14) is preferably substantially ale 30 lifting ropes (6) to provide a resultant pulling effect to pull the gravity lifting ropes (6) out of the elevator system, - lifting the elevator car (1) upwards so that the old lifting ropes (6) are retracted to the rope collecting object by pulling said pulling rope (1); preferably up to its top position. Method according to one of the preceding claims, characterized in that an old hoisting rope (6), the first end of which is secured in position with the bracket (71), is moved to the rope collecting object (14) by moving the elevator car (1) 5) by means of 10 and moving the counterweight and the diverting pulley (11) attached to the counterweight (3) or to a part of the hoisting rope (5) moving thereto, through which the old hoisting rope (6) passes from the elevator car (1) a rope pickup wheel (16) at and above the elevator to a rope pickup target (14), and allowing the old lift rope rope (6) to run so that the old lift rope rope (6) runs toward rope pickup target 20 (14) freely over said ratchet pickup key (14) driven by a pulling force. A method according to any one of the preceding claims, characterized in that the old hoisting rope is fastened downwardly so that the old hoisting rope is lowered, so that the old hoisting rope is lowered by moving the hoisting rope downwardly in the elevator shaft. runs down the elevator shaft, controlled by movement of the elevator car, at least under gravity, to a rope collecting object such as a reel or the bottom of the elevator shaft. 35 Method according to one of the preceding claims, characterized in that in the method the end of the old lifting rope (6) is lowered in the elevator shaft (2) by driving the elevator car (1) to its upper position and 5 securing the old hoisting rope (6) to the elevator car (1) so that the old hoisting rope (6) passes, without passing through the parts attached to the elevator shaft (2), from its attachment point 10 (72) in the elevator car (1) to the elevator shaft (2); , and lowering the old hoisting rope (6) by moving the elevator car (1) down in the elevator shaft (2). A method according to any one of the preceding claims, characterized in that the method converts an elevator having an elevator car (1) and / or counterweight (3) suspended in a 1: 2 lift ratio to a 1: 1 elevator with the first end of the new hoisting rope (5) 20 to the elevator car (1) and one end to the counterweight (3). A method for manufacturing an elevator, characterized in that the operations according to one of claims 1 to 5 are carried out. 25 30